Show GN: CodeRabbit 유료 PR 리뷰를 GitHub Actions + Gemma로 무료 대체하기

CodeRabbit's AI PR review features require paid plans ($24-30/month), creating barriers for small teams and personal projects. GemmaCI democratizes automated code review by providing a free, security-focused alternative that runs on GitHub Actions with the open-source Gemma model. This shift enables resource-constrained teams to access enterprise-grade code review automation without subscription costs.